Machine for the manufacture of tubes deformed to provide a helic

Details Machine for the manufacture of tubes deformed to provide a helic Machine for the manufacture of tubes deformed to provide a helic

1985-10-01

1986-11-25

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

With cutting of work or product

72 78, B21D 1504

Patent

active

046241221

ABSTRACT:
For manufacturing tubes of the "corrugated" type, i.e. comprising at least one deformation of helicoidal profile, the smooth tube (28) is displaced axially inside a fixed sheath (7) about which rotates a sleeve (4) fixed to a head forming support for at least one radially mobile "corrugating" knurl; the displacement of the knurl is effected by a cam (25-26) which surrounds said head and which is actuated by a jack (13-14). Opposite this "corrugating" knurl there is provided a cutting knurl which cuts the tube at the end of the "corrugation" operation. The number of the "corrugating" knurls may vary.

REFERENCES:
patent: 2817363 (1957-12-01), Penrose
patent: 3163083 (1964-12-01), Chapman et al.
patent: 3323339 (1967-06-01), Mattil
patent: 3379042 (1968-04-01), Brown, Sr.
patent: 3451242 (1969-06-01), Tobia

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